Big bluff vs. TWP

[Trivial]

Villain is GogUMagog, 19/15, pretty aggro, we don't have a ton of history but he seems to run hot against me and never folds to my pre-flop 3bets.

My thoughts: Not sure what he's cold-calling PF there but I guess I'm weighting his range towards pocket pairs, maybe suited broadways. When he donks the turn and I raise I'm expecting him to fold most of these holdings, but since he's called my bluff I've either got to make it convincing (i.e. fire the river barrel) or give up. He's got about $425 behind, so is pulling the trigger +EV ?

PokerStars No-Limit Hold'em, $6 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

CO ($1114.10)
Button ($600)
SB ($768)
BB ($425.25)
Hero ($1323.90)
MP ($723.35)

Preflop: Hero is UTG with 6[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/spade.gif[/img].
<font color="#CC3333">Hero raises to $21</font>, <font color="#666666">3 folds</font>, SB calls $18, BB calls $15.

Flop: ($63) Q[img]/images/graemlins/heart.gif[/img], 2[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, BB checks, <font color="#CC3333">Hero bets $36</font>, SB calls $36, BB folds.

Turn: ($135) 5[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets $87</font>, <font color="#CC3333">Hero raises to $287</font>, SB calls $200.

River: ($709) T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
SB checks, <font color="#CC3333">Hero bets $979.9 (All-In)</font>